Can't access Web Console using Firefox with Windows Authentication enabled over IIS7

[SR]

Hi,

I'm unable to access the Web Console using Firefox. The web console runs under IIS7 and everything is configured like this : http://www.lansweeper.com/kb/restrict.aspx .

The thing is : It works fine with IE on other computers. The only other problem I have, which is major, is that it does not work on the Lansweeper/IIS7 server itself, using IE. It keeps asking me for the credentials.

Any help would be appreciated. Thanks!

[SR]

Ok.. For an unknown reason it works fine with Firefox now. But I still have the problem with the server itself. I looked at the Security Logs of Windows Server 2008 and I think the problem is somewhere within the security settings of IE, because the logon are accepted. Anyways we won't be using the console directly on the server. Thank you!

[Hemoco]

You can enable security logging on the server using policies (failure audit), then you will see the exact error